| 摘要 |
PURPOSE:To obtain the titled membrane carrier suppressing nonspecific adsorption of protein, by making the surface of high polymer membrane into ash with low-temperature plasma of oxygen or oxygen-containing gas. CONSTITUTION:A porous high polymer membrane (e.g, polypropylene, etc., preferably 25-100mum membrane thickness) having constituent elements comprising carbon, hydrogen, and, if necessary, oxygen, is placed on an electrode of a plasma generator, it is discharged in an atmosphere of oxygen or an oxygen- containing gas under reduced pressure (preferably 0.15-1Torr) between the electrodes to produce vapor plasma, so that the high polymer membrane is processed into ash from the surface to give the desired membrane carrier. In the operation, preferably at least 20% thickness is reduced by ash formation. |
